This article describes an analog modulator that contains modulation, a MOSFET drive, and pre-emphasis circuits for a high-speed VLC application system based on a commercial phosphorescent white LED.

We present an external-cavity wavelength-tunable laser with a semiconductor optical amplifier-modulator monolithically integrated on the gain chip. The modulator chirp is analyzed, and it is explained ...

Portronics Mopcop 4 car vacuum cleaner comes as a handy car accessory that can be useful to clean the car's interior with or without a power cord plugged in.